28384005

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1$

素因数の和:250

約数の個数: 64

約数和(自身を含む): 52899840

約数和(自身を除く): 24515835

約数列:

[1, 3, 5, 13, 15, 19, 39, 47, 57, 65, 95, 141, 163, 195, 235, 247, 285, 489, 611, 705, 741, 815, 893, 1235, 1833, 2119, 2445, 2679, 3055, 3097, 3705, 4465, 6357, 7661, 9165, 9291, 10595, 11609, 13395, 15485, 22983, 31785, 34827, 38305, 40261, 46455, 58045, 99593, 114915, 120783, 145559, 174135, 201305, 298779, 436677, 497965, 603915, 727795, 1493895, 1892267, 2183385, 5676801, 9461335, 28384005]

約数ペア:

[(1, 28384005), (3, 9461335), (5, 5676801), (13, 2183385), (15, 1892267), (19, 1493895), (39, 727795), (47, 603915), (57, 497965), (65, 436677), (95, 298779), (141, 201305), (163, 174135), (195, 145559), (235, 120783), (247, 114915), (285, 99593), (489, 58045), (611, 46455), (705, 40261), (741, 38305), (815, 34827), (893, 31785), (1235, 22983), (1833, 15485), (2119, 13395), (2445, 11609), (2679, 10595), (3055, 9291), (3097, 9165), (3705, 7661), (4465, 6357)]